Sash-fastener.



J. C. BLAIR & R. L. FREUDENBERGER.

SASH FASTENER.

APPLICATION FILED OCT. 16, 1914.

5 1 9 1 9w 2 6 m 1 d no t H 6 Tw a D1 THE NORRIS PETERS C0,, PHOTO-LITHQ. V/ASHINGTON, D. C.

ion.

JOHN C. BLAIR AND ROBERT L. FREUDENBERG-ER, 0F CHARLESTON, WEST VIRGINIA.

To all whom it may concern:

Be it known that we, JOHN C. BLAIR and ROBERT L. FREUDENBERGER, citizens of the United States, residing at Charleston, in the county of Kanawha and State of West Virginia, have invented certain new and useful Improvements in Sash-Fasteners, of WhlCll the following is a specification.

This invention relates to an improvement in sash-fasteners, the intention being to provide a simple, inexpensive, effective and burglar-proof means of fastening the two sashes of a window.

With the foregoing in view, this invention consists of four main parts, to wit, an outer barrel adapted to be mortised in the meeting rail of some part of the sash to be fastened, and having a guide-way which extends parallel with the longitudinal axis of the barrel, a sleeve fitted and capable of turning therein and provided with a spiral guide-way, a bolt fitted to the bore of the sleeve, and means extending from the bolt through the aforesaid guide-ways, whereby the turning of the sleeve causes the endwise movement of the bolt.

In the accompanying drawings :Figure l is a sectional view through the sash-fastener as well as through the meeting rails in which the fastener is placed; Fig. 2 is a view in perspective of the invention before assembling the parts; and Fig. 3 is a sectional detail view of the two sashes, showing a modified form of socket plate.

The numeral 1 represents a cylindrical barrel having an elongated slot 2 extending lengthwise therethrough, which will be termed a longitudinal guide. The barrel is provided with a face-plate 3 at one end having holes 4, 4:, for screws to hold the fastener in the meeting rail 5.

Fitted within the bore of the barrel and adapted to turn therein is a sleeve 6 having a spiral guide 7 extending through the wall thereof, and this sleeve has a stem 8 at one end of reduced size, which fits and extends through a hole 9 in the face-plate, and a knob 10 preferably having a knurled edge 11 is held thereon by set-screw 12 extending through its shank into the depression 13 in the stem 8. Thus the knob is removably Specification of Letters Patent.

Application filed October 16, 1914.

Patented June 22, 1915. SeriaLNo. 866,925.

secured to the stem of the sleeve for turnmg the latter, the face-plate between the shoulder formed at the juncture of the end of the sleeve and the stem and the shank of the knob preventing endwise movement of the sleeve.

A bolt 14. is fitted to the bore of the sleeve, and has a hole 15 preferably threaded, which receives the inner end of a pin or screw 16 which also extends through the spiral and longitudinal guides of the sleeve and barrel respectively, the longitudinal guide limiting the movement of the bolt to an endwise thrust in either direction, while the spiral guide in the sleeve causes this movement of the bolt in one direction or the other, as the sleeve is turned to the right or to the left.

It is understood the parts are assembled by inserting the bolt in the sleeve, then the sleeve and bolt into the barrel with the hole in the bolt and the guides in the sleeve and barrel in alinement to receive the pin or screw; and the shank of the sleeve is extended through the hole 9 in the face-plate, after which the knob is secured thereon just close enough to the face-plate to permit the sleeve to be turned easily without permitting it to move appreciably lengthwise. Of course it is understood the fastener is mortised in the meeting rail or other part of the sash, and that a socket plate 17 is employed in the other meeting rail to receive the end of the bolt. Thus there are no springs; there is nothing which can be forced aside by thrusting a knife blade or other instrument between the meeting rails; the fastener has a positive endwise movement and is self-locking, that is to say, cannot be moved in any other way than by the turning of the knob from the inside so that it is positively burglar-proof.

More or less slight modifications might be made without departing from the spirit and scope of the invention, and hence it is not the desire to limit to the exact construction herein illustrated and described.

Claim- A sash-fastener comprising a stationary barrel provided with a longitudinal slot, a rotary sleeve having a spiral slot therein,

and a sliding bolt, and means connected to In testimony whereof We affix our signv the bolt passing through the spiral slot of tures, in the presence of tWo Witnesses.

the sleeve and entering the longitudinal slot JOHN G. BLAIR.

of the barrel for fastening the barrel, sleeve ROBERT L. FREUDENBERGER.

5 and bolt together, whereby upon the rota.- lVitnesses:

tion of the sleeve the bolt will be moved J. E. FRAZIER,

' R. L. B1121).

longitudinally.

O'opies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

. Washington, 20.0. 

